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How to detect a drag event of a UITableView?

I need to be notified when the resistance UITableViewcomes to an end.

But I am working on the UITableView category, so I cannot use this scrollViewDidEndDragging:willDecelerate:for archiving.

I tried using KVO to observe on draggingthe Key Path:

[self addObserver:self forKeyPath:@"dragging" options:NSKeyValueObservingOptionNew context:nil];

But observeValueForKeyPath:ofObject:change:context:it was not called, since UITableView.dragging does not have setter either, and this property does not correspond to KVO.

Is there any other way to archive this expectation when used scrollViewDidEndDragging:willDecelerate:?

Any help is appreciated! Thank!

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2 answers

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 [_tableView addObserver: self 
              forKeyPath: @"pan.state" 
                 options: NSKeyValueObservingOptionNew 
                 context: nil];

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[_scrollView.panGestureRecognizer addTarget:self action:@selector(gestureRecognizerUpdate:)];

!

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